21401434414 has 8 divisors (see below), whose sum is σ = 32102904600. Its totient is φ = 10700466216.

The previous prime is 21401434409. The next prime is 21401434421. The reversal of 21401434414 is 41443410412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10612 + ... + 207160.

It is an arithmetic number, because the mean of its divisors is an integer number (4012863075).

Almost surely, 2^21401434414 is an apocalyptic number.

21401434414 is a deficient number, since it is larger than the sum of its proper divisors (10701470186).

21401434414 is a wasteful number, since it uses less digits than its factorization.

21401434414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250994.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 21401434414 its reverse (41443410412), we get a palindrome (62844844826).

The spelling of 21401434414 in words is "twenty-one billion, four hundred one million, four hundred thirty-four thousand, four hundred fourteen".